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12 Cards in this Set

  • Front
  • Back
TRUE/FALSE - Cardiomyopathy, "heart muscle disease" does not include heart failure secondary to known etiology.
True - Heart disorder in which the structural abnormality is limited to the myocardium.
What are the 3 subtypes of Cardiomyopathy? Which is most common?
Dilated (most common); Hypertrophic; Restrictive
Certain cases of Dilated Cardiomyopathy have been shown to be caused by what inherited genetic abnormalities?
X linked dystrophin genen (muscular dystrophy)
Since progressive CHF is refractory to therapy, what is the definitive treatment for dilated cardiomyopathy?
cardiac transplantation
What are the 4 features that characterize dilated cardiomyopathy? Treatment?
progressive cardiac hypertrophy, KEY dilation and contractile (systolic) dysfunction, progressive CHF sometimes from EtOH abuse. Treatment can be ACE Inhibitors but with time heart transplantation.
What are the 3 features that characterize Hypertrophic cardiomyopathy? Treatment?
disorganized myocardial hypertrophy (often only in the ventricular septum), abnormal diastolic filling, and (in many cases) intermittent ventricular outflow obstruction. Beta blockers are the standard treatment.
50% of hypertrophic cardiomyopathy is inherited in what pattern?
Autosomal Dominant (often Beta-myosin heavy chain); Cause of young athlete death during exertion!
What type of physical exam finding will you probably find with hypertrophic cardiomyopathy?
harsh systolic ejection murmur
What characterizes restrictive cardiomyopathy?
Primary decrease in ventricular compliance (stiffness) resulting in impaired ventricular filling during diastole
With many subtypes of restrictive cardiomyopathy, name 3 possible etiologies?
Amyloidosis (Congo Red Stain); Hemochromatosis (Fe); Sarcoidosis
Name the 2 uncommon associated conditions with restrictive cardiomyopathy.
endomyocardial fibrosis; endocardial fibroelastosis
How do restrictive cardiomyopathy and constrictive pericarditis differ in treatment?
pericardial disease is amenable to surgical treatment.